19882096

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1567}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 42191744

約数和(自身を除く): 22309648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1567, 1586, 3134, 3172, 6268, 6344, 12536, 12688, 20371, 25072, 40742, 81484, 95587, 162968, 191174, 325936, 382348, 764696, 1242631, 1529392, 2485262, 4970524, 9941048, 19882096]

約数ペア:

[(1, 19882096), (2, 9941048), (4, 4970524), (8, 2485262), (13, 1529392), (16, 1242631), (26, 764696), (52, 382348), (61, 325936), (104, 191174), (122, 162968), (208, 95587), (244, 81484), (488, 40742), (793, 25072), (976, 20371), (1567, 12688), (1586, 12536), (3134, 6344), (3172, 6268)]